>>I don't see that anything much new has come up lately that would cause
>>Date's pedagogy to need to change. Every couple years I browse TODS
>>and basically see nothing that seems of practical importance, and even
>>less that extends the RM.

>
>
>
> Database systems since the late 90's have acquired a class
> of objects termed stored procedures. Essentially these are
> program objects written in the SQL of the RDBMS and
> are stored within the database.
>
> There is in progress a migration of lines of code from the
> application software environment (external to the database)
> to the stored procedure environment (internal to the database)
> and this needs to be recognised.
>
> We need a theory not just of the data, but of the data
> and its processing, which will address stored procedure
> objects (ie: processes) which are today, and not 30 years
> ago, capable of being stored and managed within the
> database systems environment.
For this, I suggest Eric Hehner.